Polynonamethylene adipate
[化] 聚己二酸亚壬基酯
🧩 词语组成解析
己二酸
🗣️ 情景例句
We're going to take it slow first.
开头我们要做慢一点。
When an opportunity is neglected,it never comes back to you.
机不可失，时不再来；机会一过，永不再来。
I'm lost.
我迷路了。